Gold nanoparticle-porphyrin self-assembled multistructures for photoelectric conversion

Sunao Yamada, Takashi Tasaki, Tsuyoshi Akiyama, Nao Terasaki, Satoshi Nitahara

Research output: Contribution to journalConference articlepeer-review

24 Citations (Scopus)

Abstract

Multistructure assemblies consisting of porphyrin and gold nanoparticles have been fabricated on an indium-tin-oxide electrode by using alternate gold-sulfur self-assembling. Structural and morphological characterizations of the assemblies have been carried out by absorption spectra and scanning electron micrographs. The results verified that the degree of each self-assembling was considerably lower than monolayer level. The assemblies exhibit clear photocurrent responses ascribing to photoexcitation of porphyrin in the presence of oxygen as a sacrificial electron acceptor. The photocurrent was larger for higher number of assembling cycles.

Original languageEnglish
Pages (from-to)70-74
Number of pages5
JournalThin Solid Films
Volume438-439
DOIs
Publication statusPublished - Aug 22 2003
EventThe 5th International Conference on Nano-Molecular Electronics - Kobe, Japan
Duration: Dec 10 2002Dec 12 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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